• Creates a contact layer between the existing substrate and the new mortar layer
• After drying, the sand from the preparation creates a rough surface, improving the adhesion of new layers
• Very good adhesion to smooth and tight substrates
• The yellow color of the preparation makes it easier to distinguish primed and un-primed places
• Alkali resistant
• One-component
• Ready to use
• For interior and exterior
• Solvent-free

Weber.prim contact is designed to:

• priming smooth and low absorbent substrates, e.g. concrete, terrazzo, OSB, ceramic and stone tiles, etc. before laying floor mortars, adhesive mortars, plasters, etc.
• for use inside and outside new or renovated residential buildings and in public utility buildings.